Police Tape

The right to take video of police encounters in public is clearly protected by the First Amendment but the trend is for police to detain people shooting video and then subsequently drop the charges.

"Exercising this right has consistently and uniformly been upheld by state and federal courts; they have made it abundantly clear that citizens have right to film police in public," he said. "What is alarming is the degree to which police are ignoring this clear precedent and continue to threaten citizens." Jonathan Turley GWU

ABC News

PoliceOne 

“As a basic principle, we can’t tell you to stop recording,” says Delroy Burton, chairman of D.C.’s metropolitan police union and a 21-year veteran on the force. “If you’re standing across the street videotaping, and I’m in a public place, carrying out my public functions, [then] I’m subject to recording, and there’s nothing legally the police officer can do to stop you from recording.”

Atlantic 

The trending police tactic is to detain the citizen, wipe the recording, and charge with obstruction, interference, disorderly conduct, and the like.  Wait... there's an App for that.

Police Tape is a program released by the ACLU-NJ.  The app is simple and allows you to use the Police Tape feature to record video and audio interaction with the police and then it backs up the video so that it can't be deleted if your phone is taken. 

iDigitalTimes